OBDSTAR X300 Key Master will show following tips, press the “Start” button on car then press “Enter” button on this tool.

After that, choose “Program smart keys” and turn off the ignition.

Input the security code and press “Enter” button. Wait a second it’s communicating.

Last step: press “Enter” button on this tool then put the new smart key vertically close to the “Start” button on car within 5 seconds. (So after you press “Enter” you should put the key close to “Start” button quickly.)